Invention Application
- Patent Title: Pressurized Fluid Discharge Device
- Patent Title (中): 加压流体排放装置
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Application No.: US12083938Application Date: 2006-10-20
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Publication No.: US20090289208A1Publication Date: 2009-11-26
- Inventor: Keitaro Yonezawa , Akira Arisato
- Applicant: Keitaro Yonezawa , Akira Arisato
- Priority: JP2005-339423 20051025
- International Application: PCT/JP2006/320951 WO 20061020
- Main IPC: F15B21/04
- IPC: F15B21/04 ; F16J15/10

Abstract:
A female screw hole (31) is opened in an outer surface of a housing (3) of a hydraulic clamp (1), and a leg portion (40a) of a tubular casing (40) is threaded into the female screw hole (31). An annular gasket (41) is fitted to an annular groove (42) formed in a head portion (40b) of the casing (40). On an inner peripheral surface (41a) of the gasket (41), a first annular sealing portion (71) which seals an inner peripheral surface (42a) of the annular groove (42) is provided. On an annular outer end surface (41d) of the gasket (41), a second annular sealing portion (72) which seals a peripheral wall (68) of the female screw hole (31) at the opening part of the housing (3) is provided. A diameter (D1) of the first annular sealing portion (71) is set to a value smaller than a diameter (D2) of the second annular sealing portion (72).
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